I have just checked coupons. The lowest price I could get is $7.99 for Stainless Steel Arrowhead Woodworking Marking Ruler 200mm (in Banggood). You can create price alert here, copy coupons and view price history. What is the best price?
Stainless Steel Arrowhead Woodworking Marking Ruler Durable and Accurate Measurement Tool Engraved Scale Wear-Resistant Perfect for Precise Woodworking Projects and Marking – 200mm
Latest price update (UTC time):
Banggood ($7.99)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). Is it expensive? Well, this price is higher than average price ($7.79)
Link: Banggood product page
Price: $7.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
3pcs/6pcs Fishing Darts Stainless Steel Arrowhead Barb Fish Darts Slingshot Shooting fishing tools Fishing Reel Accessories | $6.38 | – |
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Stainless Steel Arrowhead Woodworking Marking Ruler 200mm is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).